TaiZhou Jinghao Chemical CO., Ltd.
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Chemical Name:(3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one (4-AA) 
Cas No.:76855-69-1 
Molecular Formula:C13H25NO4Si 
Molecular Weight:287.43 
Usage:Penem intermediate